fix: fix cannot remove cv data

chem_spectra/lib/composer/ni.py

@@ -162,7 +162,14 @@ def __gen_cyclic_voltammetry_data_peaks(self):
                 x_max_peak, y_max_peak = self.__get_xy_of_peak(max_peak)
                 x_min_peak, y_min_peak = self.__get_xy_of_peak(min_peak)
 
-                if (x_max_peak == '' and x_min_peak == ''):
+                x_pecker = ''
+                if 'pecker' in peak and peak['pecker'] is not None:
+                    pecker = peak['pecker']
+                    x_pecker = pecker['x']
+                    y_pecker = pecker['y']
+                    x_pecker = f"{float(x_pecker)}"
+
+                if (x_max_peak == '' and x_min_peak == '' and x_pecker == ''):
                     # ignore if missing both max and min peak
                     continue
 
@@ -171,16 +178,11 @@ def __gen_cyclic_voltammetry_data_peaks(self):
                 else:
                     delta = abs(x_max_peak - x_min_peak)
 
-                x_pecker = ''
+
                 # calculate ratio
                 if (y_min_peak == '' or y_max_peak == ''):
                     ratio = ''
                 else:
-                    if 'pecker' in peak and peak['pecker'] is not None:
-                        pecker = peak['pecker']
-                        x_pecker = pecker['x']
-                        y_pecker = pecker['y']
-                        x_pecker = f"{float(x_pecker)}"
                     first_expr = abs(y_min_peak) / abs(y_max_peak)
                     second_expr = 0.485 * abs(y_pecker) / abs(y_max_peak)
                     ratio = first_expr + second_expr + 0.086